Building construction.



PATENTED FEB. 28. 1905.

E. G. PERROT.

BUILDING CONSTRUCTION.

APPLIUATION FILED AUG. 31, 1904.

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APPLICATION FILED AUG. 31, 1904.

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lllrviirian mamas Patented. February 28, 130%? airietiir EMILE G. PERROT, OF PHILADELPHIA, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 783,539, dated February 25%, 1905. Application filed August 31, 1904 Serial No. 222,791.

.To all wholly/1t 77m, concern:

Be it known that l, EMILE G. Punno'r, a citizen of the United States, and a resident of the city of Philadelphia, State 01" Pennsylvania, have invented certain new and use t'ul Improvements in Building Construction, and particularly in means for reinforcing cementitious parts, such as beams, "posts, floors, walls,

arches, &c., of whichthe following is a full, clear. and complete disclosure.

One object of my invention is to provide reinforced or composite concrete and metal bodies by which a trussed eilect of the rei niorc ing parts may be obtained which will correspond as nearly as possible to the trussed formation of steel beams and other supporting parts in the usual steel building and other constructions without the disadvantages of having to cut and lit the parts when placing the same in position at the place where the structure is being erected and of joining and fixing of the positions and relations of the parts as is now usual solely by the cementitious material.

A further object of myinvention is to provide such a construction in connection with the stirrups or minor members that the same is firmly and easily attached to the main longitudinal members, while at the same time the parts are simple and inexpensive to manufacture and may be standardized to afford speedy and easy application to diilerent structures.

Briefly, my invention comprises the formation of a series of substantially parallel struetural bars or elements which are united for the whole .or part of their length by meansot a transverse web which is attacl'ied to said bars in any suitable manner, said bars being sepa rated at other portions or parts to form other or diverginglongitudinal extending members, said bars also being engaged by stirrups which not only serve to support the former and to receive the internal stresses, but also serve to locate the bars both transversely and vertically within the body of the cemcntitious structure.

My invention further comprises certain constructions and detailed arrangement of parts hereinafter to be more fully set forth and claimed.

For a :tull, clear, and exact description of one embodiment oli my invention reference may be had to the followingspecilication and to the accompanying drawings, forming a part thereol, in which Figure l is a transverse sectional view ol a beam embodying one form of my invention. Fig. 2 is a similar trai'isverse section, but taken. near one end oi the beam or upon the linel 52, Fig. 3; Fig. 3, a longitudinal sectional view taken substantially upon the line 3 3, Fig. 1. Fig. 4: is a similar longitudinal sectional view, but showing the arrai'igement as applied to a coi'nplete beam and indicating the relation oi the lioouslabs; Fig. 5. a plan view oi a lloor which is supported by beams, certain parts ol the floor being shown broken away to disclose the reinforced bars within the same.

In the drawings the numeral 1 indicates a series of metallic structural elements or steel bars, which are connected by a longitmlinallyextending plate or web 2. The bars 1 l have in this instance shown as consisting of lu-shaped angle-irons, which are riveted or otherwise attached to each side of the intermediate plate or web. The longitudinally-extending members or bars 1 are also engaged by substantially vertical strips of metal 3, which form stirrups or extensions of said bars to take up the stresses in a lil'ttllSVQl'SG direction. These stirrups are preferably formed as shown and consist of a continuous strip which passes between the longitudinal elements or angle-irons 1, across the beam thereof. and then vertically between the opposite corresponding bars i. by this eoi'istruction it will be evident that a series 01 longitudipally-extending bars consisting of any number of elements consisting of angle or channel irons may be attached to a single set or stii'rups. The stirrups, in ad dition to forming means For taking up the transverse stresses, also constitute means for keeping the bars in the correct distances apart transversely. The upper ends of the stirrups are provided with openings or other means for engagement with the transverse bars oi the floor-slabs. The bars or angle-ir ns l are also held in position vertically by .means of sockets or blocks 6, which are adapted to be engaged by a screw or bolt 7, which passes through a plate 8 or other similar facing of soft material which forms the lower surface of the beam and is adapted to form a base into which lag-screws or other similar devices 1 may be inserted for attaching shaft-hangers I or other supporting devices thereto. These means for holding the metallic portion of the beam iu position are substantially the same as those described and claimed in my prior application, Serial No. 213,249, iiled June 20, 1904.

The blocks 6 not only serve to support the soft facing for the beam, but also hold the longitudinal elements in position while the cement is being placed in position and while the same is hardening. The upper portion of the blocks or sockets 6 are provided with recesses 9, which, it will be seen, cooperate with the transverse portions of the strips 3 for holding the channel irons or bars in the requisite position. 1n adapting these forms of bars and strips to beams and other parts of buildings and other structures it will be seen that certain portions of the reinforcing means may be connected by the longitudinal web, as 1nd1- cated in the central portion of Fig. 4. At this part of the beam it is not necessary to have the strips engage the longitudinal elements directly. 1 provide auxiliary strips 10, which are simply connected at their upper ends with the transverse bars 5 in the floor-slabs. The strips 3 are preferably connected with the upper longitudinal elements 1 by rivets or other similar means, as indicated at 11 in Fig. 3; but this is not necessary, as the cement in someinstances is suflicient to retain the strips and elements in their relative positions. In anchoring the ends of the longitudinal members or elements I provide an overlapping arrangement, as indicated in Fig. 5. One of the channel-irons of each upper longitudinal member is cut off, so as not to extend across the intersection of the beam with the post or a transversely-extending beam orgirder, while the other upper channeliron extends across the same, as indicated at 12 in Fig. 5. Theabuttii'igend of the adjacentlongitudinal element is treated in the same manner, and it will be seen that the two longer ends will overlap, and thereby cause the longitudinal reinforcing elements of two adjacent beams to form practical continuations of each other, the joints being staggered. These may be riveted together, which 1 consider to be the most preferable construction, although the same will be held strongly in position without having the overlapping ends riveted. The ends of beams extending at right angles to the ones above mentioned have their longitudinal reinforcing elements arranged in the manner just described, but are more separated or placed closer together in order to cross either outside or inside of the reinforcing elements of the other beam, as indicated at 13in Fig. 4.

It will thus be seen that I have provided a built-up construction of reinforcing means for a cementitious body which is easily assembled,

may be accurately designed, and which may be placed definitely and accurately in position during the operation of constructing thebuilding. Furthermore, the parts act in substantially the same manner in relation to the stresses and strains as they would if made of integral or rolled pieces instead of having the parts riveted together and at the same time may be standardized and adapted to a great variety of uses and to a great number of different building parts-such as columns, arches, walls, &c.without substantial change in the general methods and principles of arrange ment.

Having thus described my invention, what I claim, and desire to protect by Letters Patent of the United States, is l 1. Reinforcing means for a cementitious body, comprising longitudinal main bars or members formed of metallic structural elements, longitudinally-extending plates connecting said elements, and transverse minor elements attached to said longitudinally-extending bars at points where the same are not connected by said longitudinal plates.

2. Reinforcing means for a cementitious body, comprising longitudinal main bars or members formed of metallic structural elements, longitudinally-extending plates connecting said bars, said bars being separated at other points, and transverse minor elements attached to said longitudinally-extending elements where not engaged by said longitudinal plates, said minor elements also connecting parallel longitudinal bars and holding the same in position transversely within the cementitious body.

3. Reinforcing means for a cementitious body, comprising pairs of longitudinal main bars formed of metallic structural elements, longitudinally-extending vertical plates connecting portions thereof, and transverse minor elements attached to and connecting pairs of parallel longitudinally-extending main bars, and also connecting said main bars where the same are separated and not connected by said longitudinal plates.

t. Reinforcing means for a cementitious body, comprising L-shaped angle or channel irons arranged in pairs to form longitudinal main members arranged in pairs, said pairs of strips being riveted to longitudinally-extending plates at their central portions, said members being separated at their end portions and being connected by transversely-extending strips which also extend at right angles to connect parallel pairs of said main members so as to leave definite spaces between the same.

5. In reinforcing means for a cementitious body, the combination of main bars or members formed of metallic structural elements, transverse stirrups rigidly connecting said main bars, a downwardly-projecting clamp or member adapted to clamp the main bars for holding the same rigidly in position in relation to the Walls of the mold during the formation of the cementitious body.

6. In reinforcing means fora cementitious body, the combination of main bars or men1- bers formed of metallic structural elements, transverse stirrups rigidly connecting the said main bars, a dewnWardly-projecting clamp or member having an attachable keyed portion adapted to engage between said main members to hold the same rigidly in position in relation to the walls of the mold during the formation of the cementitious body.

7. In reinforcing means for a cem'entitious body, the combination of main bars or members "formed of metallic structural elements,

In Witness whereof I have hereunto set my hand this 30th day of August, A. l). 190%.

EMILE (3r. PERROTIT.

WVitnesses:

JOHN B. Rn'rji-mnnonn, Enw. XV. VAILL, Jr. 

